A vehicle comprising: an engine comprising two banks of cylinders having axial directions angled relative to each other to form a region running between the axial directions of the two banks; a plurality of exhaust components located in the region; and a heat shield enclosing the exhaust components between the engine and the heat shield, the heat shield comprising an inner surface facing the exhaust components, a first heat shield inlet and a heat shield outlet, and the heat shield being configured to channel an airflow between the first heat shield inlet and the heat shield outlet over the inner surface of the heat shield.